Canvas stretching pliers



FIG. 1 is a top view of the canvas stretching pliers of my new design;

FIG. 2 is a front end view of the pliers;

FIG. 3 is a left side elevation view of the pliers;

FIG. 4 is a rear end view of the pliers;

FIG. 5 is a bottom view of the pliers;

FIG. 6 is a right side elevation view of the pliers. 

The ornamental design for a canvas stretching pliers, as shown and described. 